Questions & Answers about Trik je jednostavan.
- trik = trick
- je = is
- jednostavan = simple
So the sentence literally matches English very closely: The trick is simple.
Croatian does not have articles like a/an/the.
So trik can mean:
- a trick
- the trick
Which one is meant depends on context. In this sentence, the natural English translation is usually The trick is simple, but Croatian itself does not mark that with an article.
Je is the 3rd person singular present tense of the verb biti (to be).
So:
- ja sam = I am
- ti si = you are
- on/ona/ono je = he/she/it is
In Trik je jednostavan, je means is.